623K

Elevating Scrapers 623K

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Key Specs

Flywheel Power - Tractor/Scraper: 304 kW (407 hp); 304 kW (407 hp)

Scraper Capacity - Heaped: 23 yd³; 17.6 m³

Top Speed - Loaded: 33.5 mile/h; 53.9 km/h

623K
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Overview

One machine team

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

Benefits

Increased Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Up To 7% More Elevator Torque

A stronger elevator structure reduces chain wear and improves available torque

Additional Safety

New safety features help operators be more productive and work more efficiently all day long

Features At A Glance

BE MORE PRODUCTIVE

BE MORE PRODUCTIVE

BE MORE PRODUCTIVE

Up to 7% additional elevator torque.
Up to 50% improvement in chain life.
Enhanced elevator drive sprocket for reduced chain wear.Improved scissor-style chain tension system for decreased
sprocket wear, chain wear, and chain jumping.
Cat C13 engine offers increased power density with a combination
of proven electronic, fuel, and air systems.
Use Ground Speed Control to set the desired top speed, and the
machine will find the gear that works best for the engine and the
transmission, providing a lower fuel burn.
• The Machine Speed Limit feature replaces Top Gear Selection.
Advanced Productivity Electronic Control System (APECS) allows
the engine and transmission to communicate on a high level. This
communication allows the machine to better utilize the power
and torque the engine is producing. The net result is moving more
material.
Auto-Stall assists in quickly bringing the transmission to an
operating temperature at start-up when the machine is working in a
cold climate region.
Cat Payload Estimator for scrapers is an earthmoving solution for
optimal payload and jobsite efficiency. Payload Estimator achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Payload Estimator is optimized to be used with Sequence Assist, which provides increased productivity with less operator effort.

WORK IN COMFORT

WORK IN COMFORT

WORK IN COMFORT

Reduce up to 14 individual operator commands per cycle with
Sequence Assist (optional attachment).
Steer with less effort using the newly designed high-pressure
steering system.
Enjoy interior improvements and a more ergonomic work
environment with a 21% larger cab than the G Series cab.
Intuitive, ergonomic controls keep operators focused on their work.
Maintain desired cab temperature with automatic temperature
control.

DESIGNED FOR SAFETY

DESIGNED FOR SAFETY

DESIGNED FOR SAFETY

Brakes are hydraulically actuated wet disc brakes for the tractor
and scraper.
Get in and out of the cab easier with the new powered access
ladder system (optional attachment).
Enhance an operator’s awareness of site surroundings with the
optional Work Area Vision System (WAVS).
Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.
Ground level, engine shut-off switch stops all fuel to the engine
when activated and shuts down the machine.
Advanced Cushion Hitch allows the cushion hitch to prevent
end stroke by having the ability to predict end stroke events
and manage the rate of dampening, resulting in reduced hitch
maintenance and improved operator ride in rough conditions.

EASY TO OPERATE

EASY TO OPERATE

EASY TO OPERATE

The spacious cab features easy, intuitive controls and excellent
visibility. The cab provides a comfortable working environment for
all-day operation.
Cat Advanced Ride Management (ARM) seat suspension reduces
end stroke movement of the load cylinder for a smoother ride.
Engine overspeed protection will automatically engage with no
operator input when the machine is in eighth gear. The machine
will assist in slowing the machine speed by canceling the throttle
command and engaging the engine compression brake.

INTEGRATED CAT TECHNOLOGIES

INTEGRATED CAT TECHNOLOGIES

Monitor, manage, and enhance jobsite operations.
Hit target grade faster and more accurately with Cat GRADE technologies. Finish jobs in fewer passes and with less operator effort, saving you time and helping to increase profit.
Product Link™ collects machine data that can be viewed online through web and mobile applications (optional attachment).
Access information anytime, anywhere with Vision Link®– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your jobsite.
Shorten the learning curve for inexperienced operators with Load Assist (optional attachment).

EXECUTE EFFICIENCY

EXECUTE EFFICIENCY

The new tractor hydraulic on-demand fan helps assist in lower fuel consumption.
The Cat C13 tractor engine emits equivalent to U.S. EPA Tier 2 and EU Stage II and U.S. EPA Tier 3 and EU Stage IIIA, contributing to lower fuel .
Using draft-arm overflow guards diverts material away from the bowl, preventing material from getting caught between the draft arms and the bowl sides.
Cat Grade Control (optional attachment) intelligently ensures the machine does not cut below grade in a cut area or overfill in the fill area.

Full Specifications Standard Equipment Optional Equipment

Product Specifications for 623K

Download Print

General

Top Speed - Loaded	33.5 mile/h 53.9 km/h
Number of Flights	15 15
Operating Weight - Empty	88061 lb 39937 kg
180° Curb-to-Curb Turning Width	38.71 ft 11.8 m
Overall Shipping Height	12.37 ft 3.77 m
Overall Length	45.18 ft 13.77 m
Maximum Depth of Spread	18.3 in 465 mm
Fuel Tank Refill Capacity - Scraper	201 gal (US) 763 l
Scraper Capacity - Struck	18.8 yd³ 14.4 m³
Scraper Capacity - Heaped	23 yd³ 17.6 m³
Rated Load	25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons) 25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons)
Tires - Tractor Drive	33.25R29E3 33.25R29E3
Width - Cut	10.3 ft 3.14 m
Elevator Flight Spacing	20 in 520 mm
Overall Width	11.71 ft 3.57 m
Maximum Depth of Cut	10.3 in 262 mm
Maximum Floor Opening	4.4 ft 1.34 m
Tires - Scraper	33.25R29E3 33.25R29E3

Engine

Flywheel Power - Tractor/Scraper	304 kW (407 hp) 304 kW (407 hp)
Rated Engine RPM	2000 r/min 2000 r/min
Engine Model	Cat C13 Cat C13
Flywheel Power - Tractor	407 HP 304 kW
Note	C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III. C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III.

Transmission

Top Speed - Loaded

33.5 mile/h 53.9 km/h

Scraper Bowl

Scraper Capacity - Heaped

23 yd³ 17.6 m³

Service Refill Capacities

Fuel Tank	216.09 gal (US) 818 l
Crankcase	8.08 gal (US) 30.58 l
Cooling System	11.89 gal (US) 45 l
Hydraulic System	21.926 gal (US) 83 l
Transmission System	24.76 gal (US) 93 l

Dimensions

Height - Overall Shipping	158.9 in 4037 mm
Length - Overall Machine	542 in 13767 mm
Width - Overall Machine	141.1 in 3585 mm
Height - Top of Cab	142.6 in 3621 mm
Height - Scraper Blade Maximum	20.5 in 520 mm
Width - Tractor	133.1 in 3381 mm
Width - Inside of Bowl	120 in 3048 mm
Width - Outside Rear Tires	128.9 in 3275 mm
Front of Tractor to Front Axle	122.8 in 3119 mm
Wheel Base	329.5 in 8370 mm
Rear Axle - Rear of Machine	89.7 in 2278 mm
Ground Clearance - Tractor	21.9 in 557 mm
Width - Overall Machine - Ladder Down	149.2 in 3790 mm
Axle to Vertical Hitch Pin	17 in 432 mm
Width - Rear Tire Centers	90.2 in 2290 mm
Height - Top of Elevator	148.3 in 3768 mm

Cab

ROPS/FOPS	Meets ISO standards Meets ISO standards
Exterior Sound Level	The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A). The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).

Safety Criteria Compliance Standards

Reverse Alarm	ISO 9533:2010 ISO 9533:2010
Steering System	ISO 5010:2007 ISO 5010:2007
Rollover Protection Structure (ROPS)	ISO 3471:2008 for up to 17 084 kg (37,664 lb) ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat Belt	SAE J386:JUN1985 SAE J386:JUN1985
Falling Object Protective Structure (FOPS)	ISO 3449:2005 Level II ISO 3449:2005 Level II
Brakes	ISO 3450:2011 ISO 3450:2011

Travel Speeds - Runout

Transmission Gear - Reverse	5.7 mile/h 9.2 km/h
Transmission Gear - Sixth	18.4 mile/h 29.6 km/h
Transmission Gear - Third	7.5 mile/h 12.1 km/h
Transmission Gear - Second	5.5 mile/h 8.9 km/h
Transmission Gear - Fifth	13.6 mile/h 21.9 km/h
Transmission Gear - Seventh	24.8 mile/h 39.9 km/h
Transmission Gear - First	3.1 mile/h 5 km/h
Transmission Gear - Eighth	33.5 mile/h 53.9 km/h
Transmission Gear - Fourth	10.1 mile/h 16.3 km/h

Implement Cycle Times

Ejector Retract	9.7 s 9.7 s
Bowl Raise	3 s 3 s
Bowl Lower	3.5 s 3.5 s
Ejector Extend	6.45 s 6.45 s

623K Standard Equipment

Print

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN - TRACTOR

Cat C13

Cat engine brake

Electric start, 24 Volt

Air cleaner, dry type with precleaner

Fan, hydraulic

Ground level engine shutdown

Radiator, aluminum unit core, 9 fins per inch

Guard, crankcase

Muffler (only for less or non-regulated regions engine arrangement only)

Starting aid, ether

BRAKING SYSTEM

Primary and secondary, wet disc, hydraulic

Throttle lock

Parking , hydraulic released, spring applied

Primary and secondary, wet disc, hydraulic

TRANSMISSION

8-speed planetary power shift

APECS software

Transmission hold

Ground speed control

Machine speed limit

Programmable top gear selection

Differential lock

Standard tire spin reduction

Differential lock protection

Guard, power train

ECPC control

ELECTRICAL - TRACTOR

Alternator, 150 Amp

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Starting/charging receptacle

LIGHTING SYSTEM - TRACTOR

Headlights, halogen

Halogen sdie vision (2)

Bowl (1)

LED Floodlights

Turn Signals with hazard Function

Cutting Edge (2)

ELECTRICAL - SCRAPER

Alarm, backup

LIGHTING SYSTEM - SCRAPER

Brake lights, LED

Trun signals with hazard function, LED

KEYPAD SWITCHES

Throttle lock

Retarding level select

Hazard lights

Wipers/washers

Work lights on/off

Information mode on Messenger Display

SAFETY TAB ROCKER SWITCHES

Regeneration control

Parking Brake

OPERATOR ENVIRONMENT - TRACTOR

HVAC system, heat, AC, defrost

Thermostat control of HVAC system

Coat hook

Lunchbox platform with holding strap

Diagnostic connection (2)

12V power ports (2)

Differential lock (1)

Dome courtesy light

Horn, electric

T-Handle implement control

Mirror, rearview

Radio ready

ROPS/FOPS cab, pressurized

Seat belt, static two-piece

Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees

Steering wheel, tilt, telescoping, padded

Windows, right side emergency egress

Windows, sliding

Windows, laminated, zipped in

Windshield wipers, front and rear windows, includes washers

Door lock

Messenger Display

GAUGES, WARNINGS INCLUDE:

Coolant temperature

Cushion hitch

Secondary steering

Bail down

Park brake

Action lamp

Transmission hold

Engine oil temperature

High beam lights

Fuel level

Hydraulic oil temperature

Apron float

Differential lock (1)

Gear selection

Throttle lock

Ejector auto

System voltage

Brake system

Implement lockout

Regeneration required

Engine speed, rpm

FLUIDS

Extended Life Coolant to -37� C (-34� F)

OTHER STANDARD EQUIPMENT - TRACTOR

Advanced cushion hitch

Accumulators (cushion hitch) with Canadian Registration Number (CRN)

Fast oil change

Fenders, non-metallic

Heater, engine coolant 120V

Rims (2)

Tow pin, front

Vandalism locks

Heater, engine coolant 120V

BOWL

17.6 m³ (23 yd³), heaped

13.5 m� (17.6 yd�), struck

OTHER STANDARD EQUIPMENT - SCRAPER

Vandalism locks

Elevator with 15 flights

Hydraulic position sensing cylinders (bowl lift and apron)

623K Optional Equipment

Print

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

STEERING ARRANGEMENTS

Secondary Steering Arrangement

INTEGRATED TECHNOLOGIES

Sequence Assist Arrangement

Product Link

Cat Grade Control with Load Assist

WORK LIGHT ATTACHMENTS

HID work lights

AMBIENT CAPABILITY ARRANGEMENTS

Cooling, high ambient HRC

Extended Life Coolant, -50� C (-58� F)

Cooling, high ambient LRC

Cooling, low ambient LRC

OTHER ATTACHMENTS

Camera arrangement - WAVS

Steering lock - external

Cab beacon

Air horn

Air horn and beacon

Fender, scraper

Wiring group

Year of manufacture plate

SERVICE INSTRUCTIONS

Film arrangement - U.S. (ANSI)

Film arrangement - International (ISO)

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

Assist

Equipment Management

Grade

Payload

Productivity

Cat Load Assist for Wheel Tractor-Scrapers

Cat® Load Assist for Wheel Tractor-Scrapers automates bowl loading with the push of a button. As the machine approaches the cut, the operator activates Load Assist to automate the cutting-edge height.

Explore Technology
Cat Sequence Assist for Wheel Tractor-Scrapers

Cat® Sequence Assist for Wheel Tractor-Scrapers uses integrated software to automate repetitive tasks an operator performs when loading, hauling, and dumping. Reduce operator fatigue and rework caused from working manually.

Explore Technology

1 - 8 of 9 Items items

Previous Next

Cat® Load Assist for Wheel Tractor-Scrapers automates bowl loading with the push of a button. As the machine approaches the cut, the operator activates Load Assist to automate the cutting-edge height.

Explore Technology

Cat® Sequence Assist for Wheel Tractor-Scrapers uses integrated software to automate repetitive tasks an operator performs when loading, hauling, and dumping. Reduce operator fatigue and rework caused from working manually.

Explore Technology

Cat Inspect

Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.

Explore Technology
Cat Product Link

Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

Explore Technology
VisionLink®

VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology

1 - 8 of 9 Items items

Previous Next

Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.

Explore Technology

Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

Explore Technology

VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology

Cat Grade Control for Wheel Tractor-Scrapers

Cat® Grade Control for Wheel Tractor-Scrapers is a factory-integrated machine control and guidance system designed to help you move material correctly the first time.

Explore Technology

1 - 8 of 9 Items items

Previous Next

Cat® Grade Control for Wheel Tractor-Scrapers is a factory-integrated machine control and guidance system designed to help you move material correctly the first time.

Explore Technology

Cat Payload Estimator for Scrapers

Cat® Payload Estimator for Scrapers uses bowl lift cylinder pressure from the end of the cut to calculate payload. Payload Estimator is optimized with Sequence Assist, which helps to increase productivity with less operator effort.

Explore Technology

1 - 8 of 9 Items items

Previous Next

Cat® Payload Estimator for Scrapers uses bowl lift cylinder pressure from the end of the cut to calculate payload. Payload Estimator is optimized with Sequence Assist, which helps to increase productivity with less operator effort.

Explore Technology

VisionLink® Productivity

VisionLink® Productivity is an easy-to-use cloud-based platform that gathers and summarizes machine telematics and jobsite data from all your equipment. Actionable performance data is transmitted to the web platform for users to access anywhere, anytime via a mobile, tablet, or desktop device - on or off the jobsite.

Explore Technology

1 - 8 of 9 Items items

Previous Next

VisionLink® Productivity is an easy-to-use cloud-based platform that gathers and summarizes machine telematics and jobsite data from all your equipment. Actionable performance data is transmitted to the web platform for users to access anywhere, anytime via a mobile, tablet, or desktop device - on or off the jobsite.

Explore Technology

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